Finding the Fourth Proportional to 1,133,796.30, 1,564,638.78 and 624,498.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,133,796.30 : 1,564,638.78 = 624,498.72 : x
2. Step 2: Convert to fraction form
   1,133,796.30/1,564,638.78 = 624,498.72/x
3. Step 3: Cross multiply
   1,133,796.30x = 1,564,638.78 × 624,498.72
4. Step 4: Simplify right side
   1,133,796.30x = 977,114,915,372.36
5. Step 5: Solve for x
   x = 977,114,915,372.36/1,133,796.30
6. Step 6: Final answer
   x = 861,808.17